This is not slight at all. It really pigeon holes Sentis/Maras to roll Focus/Smash spec to be viable.
Well, you've still got Carnage, but Annihilation's -thing- was that its self heals let it dominate the 4m classes at the cost of not having burst. I thought that was a fair trade.
And if marauders in general can be said to be unbalanced, slow self heals in one spec couldn't be said to be why..
Hurts raiders too.
Just a bad change.